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5-1-hydroxy-2-(2,4,5-trifluorophenyl)ethylidene-2,2-dimethyl-1,3-dioxane-4,6-dione

5-1-hydroxy-2-(2,4,5-trifluorophenyl)ethylidene-2,2-dimethyl-1,3-dioxane-4,6-dione ??? ???
?? ??:
764667-64-3
???:
5-1-hydroxy-2-(2,4,5-trifluorophenyl)ethylidene-2,2-dimethyl-1,3-dioxane-4,6-dione
???(??):
ethylidene);Sitagliptin-9;Sitagliptin Impurity 96;5-(1-Hydroxy-2-(2,4,5-trifluorophenyl);5-[1-Hydroxy-2-(2,4,5-trifluorophenyl)et;5-[1-hydroxy-2-92,4,5-trifluorophenyl0ethylidene]-2,2-dimethyl;5-[1-Hydroxy-2-(2,4,5-trifluorophenyl)ethylidene]-2,2-dimeth...;5-1-hydroxy-2-(2,4,5-trifluorophenyl)ethylidene-2,2-dimethyl-1,3-dioxane-4,6-dione;5-[1-Hydroxy-2-(2,4,5-trifluorophenyl)ethylidene]-2,2-diMethyl-1,3-dioxane-4,6-dion;1,3-Dioxane-4,6-dione,5-[1-hydroxy-2-(2,4,5-trifluorophenyl)ethylidene]-2,2-diMethyl-
CBNumber:
CB31120915
???:
C14H11F3O5
??? ??:
316.23
MOL ??:
764667-64-3.mol

5-1-hydroxy-2-(2,4,5-trifluorophenyl)ethylidene-2,2-dimethyl-1,3-dioxane-4,6-dione ??

???
117 °C (decomp)
?? ?
489.0±45.0 °C(Predicted)
??
1.462±0.06 g/cm3(Predicted)
?? ??
under inert gas (nitrogen or Argon) at 2-8°C
???
?????(?? ???), ???????(?? ???), ???(?? ???)
???
?????(??), ???????(??), ???(??)? ???
??? ??
??
??? ??
??? ??
?? ?? (pKa)
4.50±1.00(Predicted)
??
???? ?????
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
????(GHS): GHS hazard pictograms
?? ?: Warning
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H302 ??? ??? ?? ?? ?? - ?? ?? 4 ?? GHS hazard pictograms P264, P270, P301+P312, P330, P501
H315 ??? ??? ??? ????? ?? ????? ?? 2 ?? GHS hazard pictograms P264, P280, P302+P352, P321,P332+P313, P362
H319 ?? ?? ??? ??? ?? ? ?? ?? ??? ?? ?? 2A ?? GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
H335 ?? ???? ??? ? ?? ?? ???? ?? - 1? ??;???? ?? ?? 3 ?? GHS hazard pictograms
??????:
P261 ??·?·??·???·??·...·????? ??? ????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.

5-1-hydroxy-2-(2,4,5-trifluorophenyl)ethylidene-2,2-dimethyl-1,3-dioxane-4,6-dione C??? ??, ??, ??

??? ??

White to Off-white Solid.

??

5-[1-Hydroxy-2-(2,4,5-trifluorophenyl)ethylidene]-2,2-dimethyl-1,3-dioxane-4,6-dione is an impurity of the DPP-IV inhibitor Sitagliptin (S491000).

?? ??

5-[1-Hydroxy-2-(2,4,5-trifluorophenyl)ethylidene] is an intermediate for the synthesis of sitagliptin. Sitagliptin is a new type of anti-type II diabetes drug approved by the FDA and the first dipeptidyl peptidase-IV inhibitor drug for the treatment of type II diabetes.

5-1-hydroxy-2-(2,4,5-trifluorophenyl)ethylidene-2,2-dimethyl-1,3-dioxane-4,6-dione ?? ?? ? ???

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?? ??


5-1-hydroxy-2-(2,4,5-trifluorophenyl)ethylidene-2,2-dimethyl-1,3-dioxane-4,6-dione ?? ??

???( 103)?? ??
??? ?? ??? ?? ?? ? ??
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5-1-hydroxy-2-(2,4,5-trifluorophenyl)ethylidene-2,2-dimethyl-1,3-dioxane-4,6-dione ?? ??:

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